Role of nonequilibrium conduction electrons on the magnetization dynamics of ferromagnets in the s-d model

In the literature on the s-d model for the magnetization dynamics in systems without and with spin-polarized transport currents, it is generally assumed that the adiabatic part of the s-electron magnetization is everywhere parallel to the d-electron magnetization. We present model calculations within the ab initio spin-density functional theory which suggest that this assumption is not valid for systems with strongly noncollinear magnetization configurations.